CN115347628A
The over-current detection method comprises the following steps: updating the over-current counting times based on the obtained over-current signal, wherein the over-current counting …
The over-current detection method comprises the following steps: updating the over-current counting times based on the obtained over-current signal, wherein the over-current counting …
During charging at low temperatures, high rates, and high states of charge, the deposition of metallic Li on anodes occurs which leads to rapid battery aging and failure. 11,19,21,34,65–69 This Li deposition on anodes can be detected in battery cells with a reference electrode. 19,65,68,70 However, commercial cells in automotive or consumer electronics …
This study investigates a novel fault diagnosis and abnormality detection method for battery packs of electric scooters based on statistical distribution of operation data that are stored in the cloud monitoring platform. ... This kind of improper behavior that the E-scooter operates in the extreme environment may trigger the over-current and ...
Typical local measurement-based methods include overcurrent, current derivative, under voltage, and distance. These fault protection methods are non-unit protection and can respond to both in-zone and out-of-zone faults if protection thresholds are reached. The most common communication-based fault detection method is differential protection.
a detection system for an over-current internal short in a battery pack includes a plurality of electrically-serially-coupled battery elements storing energy for the battery pack; a sensor system configured to collect a plurality of data from the battery elements; and a controller, coupled to the sensor system, configured to evaluate the plurality of data against one or more …
As a general rule if the supply voltage increases by 110% of the rated voltage this is then known as an overvoltage. For example, if a device has a specified voltage supply of 230V AC and suddenly is supplied with anything over 250V AC this would be dangerous to the circuit and cause the system/equipment to become electrically unstable.
With the proliferation of Li-ion batteries in smart phones, safety is the main concern and an on-line detection of battery faults is much wanting. Internal short circuit is a very critical issue ...
The application discloses an overcurrent detection method, a battery management unit and a battery management system, and belongs to the technical field of batteries. The over-current detection method comprises the following steps: updating the over-current counting times based on the obtained over-current signal, wherein the over-current counting times are the …
Hermann W A, Kohn S I. Detection of over-current shorts in a battery pack using pattern recognition. US Patent 8618775B2, 2013-12-31. Hermann W A, Kohn S I. Detection of over-current in a battery pack. US Patent 20140088809A1, 2014. Google Scholar Keates A W, Otani N, Nguyen D J, et al. Short circuit detection for batteries.
This application is a divisional of U.S. patent application Ser. No. 13/343,993, filed Jan. 5, 2012, and entitled DETECTION OF OVER-CURRENT IN A BATTERY PACK, the entire contents of which are incorporated herein by reference. ... A method for detecting an over-current internal short in a battery pack includes a) collecting a plurality of data ...
Although the method eliminates the blanking time needed by the desaturation method, thus providing a fast response to short-circuit events, it is only suitable for power modules with a Kelvin connection. Refs. [13, 14] introduced a method for detecting the overcurrent of SiC MOSFETs using the Rogowski coil. However, the implementation of the ...
There are many types of over-current protection circuits; the complexity of the circuit depends on how fast the protection circuit should react during an over-current situation. In this project, we will build a simple over …
This type of fault sensing is not over-current detection, so fusing or circuit breakers will keep the conductors and insulation from being damaged. Detection methods. ... Solar panels or battery-operated systems use positive and negative conductors that are insulated. When connections get wet, this insulation becomes compromised, and current ...
Embodiments of the present application relate to the technical field of batteries, and in particular to a method for overcurrent detection in a battery, a battery management system, and a...
As a general rule if the supply voltage increases by 110% of the rated voltage this is then known as an overvoltage. For example, if a device has a specified voltage supply of 230V AC and suddenly is supplied with anything …
Study different BMS in battery system fault condition (such as over-charge, over-discharge, over-temperature, over-current) under the condition of the response as a result, …
Specifically, the battery management system manages the charging and discharging of a battery and provides disconnection protection for the battery in case of a battery fault (e.g., …
Digital AC current sensor with integrated overcurrent detection The TLI4971 is a high-precision miniature coreless magnetic cur-rent sensor with analog interface and two fast over-current de-tection outputs (block diagram in Figure 1). Infineon''s well-estab-lished and robust monolithic Hall technology enables accurate and
Another way to detect an overcurrent condition is to eliminate the shunt resistor and use the power MOSFET itself as the sensing element. Figure 4 shows the Infineon AUIR3200S MOSFET driver, which includes short-circuit protection. Figure 4: The AUIR3200S is a MOSFET driver with integrated over-current detection and temperature compensation ...
The overcurrent detection circuit monitors the current flowing into or out of the battery and cuts off the current when it exceeds the predefined threshold. ... There are two main types of current measurement techniques used in battery chargers: FET SENSE: This method uses the on-resistance of the MOSFET in the charging/discharging path to ...
Selective action was soon needed and the graded overcurrent system has evolved to give discriminative fault protection. Overcurrent protection should not be confused with overload protection which is related to the thermal capability of plant or circuits, whereas overcurrent protection is primarily provided for the correct clearance of faults ...
In a first aspect, the present application provides a method for overcurrent detection in a battery, including: acquiring a first current at a negative electrode of the battery …
The present disclosure describes systems and methods for overcurrent protection of a battery system. While principles of the current disclosure are described with reference to the battery system of an electric vehicle, it should be understood that the disclosure is not limited thereto. ... Detection of over-current in a battery pack ...
The S82A2A/B/C and S-82B2A/B Series are the world''s first* 2-serial cell battery protection ICs using an external current detection resistor to deliver high-accuracy overcurrent protection not easily susceptible to battery voltage and temperature fluctuations. Moreover, the S-82A2A/B/C series comes with a protection IC whose charge/discharge overcurrent detection voltage …
INA300: Overcurrent Alert Only INA301: Overcurrent Alert w/ Analog Output INA302: Multi-Level Overcurrent Alert w/ Analog Output INA303: Windowed Multi-Level Overcurrent Alert w/ Analog Output Over-Current Detection Topologies – A summary 14 Load Power Supply (0 V to 36 V) +2.7 V to 5.5 V R Pull-up 10 kΩ V S GND IN+ IN-+-CMP LIMIT + V S GND ...
This application is a divisional of U.S. patent application Ser. No. 13/343,993, filed Jan. 5, 2012, and entitled DETECTION OF OVER-CURRENT IN A BATTERY PACK, the entire contents of which are incorporated herein by reference. ... A method for detecting an over-current internal short in a battery pack includes a) collecting a plurality of data ...
The rest of this paper is organized as follows. Section 2 discusses the traditional method of battery management chip. In Sect. 3, a novel one cell battery management chip is presented. In Sect. 4, the measurements are presented and discussed, and Sect. 5 concludes the paper. ... the discharging and charging overcurrent detection circuits, an ...
different methods for current measurement, which are commercially available and used in the battery junction box in an electric vehicle for current monitoring and detection of overcurrent and short-circuits. A practical experimental validation is then performed to test the desaturation detection method as a
from the high voltage battery side. This adds a new challenge to the designers who were not used to isolation in the conventional vehicles. This document provides various options to isolate the ADC''s in battery monitoring circuits. Battery monitoring and over-current detection circuit Figure 1. Typical monitoring and Over-current detection ...
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